39 lines
1.0 KiB
LLVM
39 lines
1.0 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -newgvn -S | FileCheck %s
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define i32 @test1(i32 %arg) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[ARG:%.*]], 5
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; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
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; CHECK-NEXT: ret i32 [[ARG]]
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;
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%cmp = icmp sge i32 %arg, 5
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call void @llvm.assume(i1 %cmp)
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ret i32 %arg
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}
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define i32 @test2(i32 %arg, i1 %b) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: br label [[BB:%.*]]
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; CHECK: bb:
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; CHECK-NEXT: [[A:%.*]] = phi i32 [ 1, [[TMP0:%.*]] ], [ 2, [[BB]] ]
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[ARG:%.*]], [[A]]
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; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
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; CHECK-NEXT: br i1 [[B:%.*]], label [[BB]], label [[END:%.*]]
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; CHECK: end:
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; CHECK-NEXT: ret i32 [[ARG]]
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;
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br label %bb
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bb:
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%a = phi i32 [ 1, %0 ], [ 2, %bb ]
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%cmp = icmp eq i32 %arg, %a
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call void @llvm.assume(i1 %cmp)
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br i1 %b, label %bb, label %end
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end:
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ret i32 %arg
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}
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declare void @llvm.assume(i1 %cond)
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